Scientific Calculator
Trig functions use radians
Type an expression or use the buttons. Errors will show in red.
Frequently Asked Questions (FAQ)
What is a scientific calculator?
A scientific calculator performs advanced functions like trigonometry, logarithms, exponentials, factorials, and memory in addition to basic arithmetic.
Is this scientific calculator free?
Yes. It’s 100% free to use online — no downloads or registration required.
Does it support trigonometric and logarithmic functions?
Yes. It includes sine, cosine, tangent (and inverse), ln, log (base 10), square root, and exponentiation.
Can I use this calculator on my phone?
Yes — the layout is responsive and works on smartphones, tablets, and desktops.
Can I use this calculator during exams?
That depends on your exam rules. This tool is intended for practice and study — check with your institution before using in exams.